Field studies were conducted using Muscovy ducks, Cairina moschata L., to control house flies, Musca domestica L., in swine and dairy facilities. In fly-proof calf pens, one Muscovy duck per pen reduced the adult fly numbers by 96.8% when compared with pens without a duck. The maggot population was reduced by 98.7% when compared with pens without a duck. In an enclosed calf room, fly populations on animals were reduced by 84 and 93% when compared with the times when ducks were not present. However, in open areas of the dairy facility which allowed for immigration and emigration of house flies, statistically significant reductions were not observed. Ducks reduced fly populations on animals by 91% in an enclosed swine farrowing room. In an open dry sow facility, ducks reduced the house fly population by up to 86%. Female ducks consumed house flies up to three times faster than the males. During most experiments, duck health was maintained without any supplementary feedings. Ducks had access to flies, water, and spilled (wasted) feed. On conclusion of the studies, the least valuable ducks were sold for twice the invested cost (2 cost versus 4 sale), yielding a 100% return on investment. Farmer acceptability was good.
Document Type: Research Article
Publication date: December 1, 1993
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Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.